Mosquito Infestation Swarms in Barranquilla and Atlántico
High temperatures and sudden rain showers across the Caribbean region have triggered a massive mosquito infestation in Barranquilla and surrounding areas of the Atlántico department, leaving visitors and residents grappling with relentless swarms. Zona Cero reported that sites experiencing heavy foot traffic, such as the Gran Malecón, have become central points where citizens express frustration over the biting insects. Infectious disease specialist Jesús Tapia explained that prolonged drought followed by increased rainfall creates optimal breeding conditions, noting that the Aedes aegypti mosquito favors clean, stagnant water while the Culex mosquito thrives in turbid environments. When the female Aedes aegypti mosquito lays eggs, she deposits approximately 200 of them in each clutch, and Maira Quintero brings out a blue cloth from her home to “scare away the disturbance” of mosquitoes. Dr. Tapia noted that an unused swimming pool left stagnant can turn into a mosquito breeding ground.
The District Health Secretary, Stephanie Araujo, identified the Culex mosquito as the primary driver of the current plague during an interview with Emisora Atlántico. While the Culex mosquito causes painful bites and skin irritation, it does not transmit dengue. Conversely, health authorities maintain active surveillance for the Aedes aegypti vector, which transmits dengue, zika, and chikungunya. Blu Radio noted that visitors to the Gran Malecón and local sports facilities between 5:00 p.m. and 7:00 p.m. have resorted to carrying repellents and closing windows to escape the insects, and Araujo also pointed out that a greater proliferation of mosquitoes occurs between 5:00 p.m. and 6:00 p.m.
While Dr. Tapia urged environmental authorities in Barranquilla, Soledad, Malambo, and Sabanagrande to launch a shock plan targeting discarded tires in open-air dumps that serve as breeding grounds—specifically along the Oriental highway in the stretches of Soledad, Malambo, and Sabanagrande—Edison Barrera, secretary of health for Soledad, stated that they have taken measures such as cleaning streams and collecting garbage in streets where water can accumulate. Dr. Tapia recommended using a repellent containing DEET at a 35% concentration.
Epidemiologist César Visbal supported the environmental assessment, pointing out to El Heraldo that fluctuating temperatures and increased precipitation expand the reproduction sites for vectors near the Gran Malecón and local streams. Barranquilla has recorded approximately 3,150 dengue cases in 2026 with zero related deaths in the District, whereas the broader Atlántico department registered 3,124 cases up to epidemiological week 38—with 43.5% corresponding to patients with warning signs and 0.7% to severe dengue—placing the department above expected case limits for the same epidemiological period and prompting the rollout of the Qdenga dengue vaccine free of charge since September for nine-year-old children at authorized PASO, CAMINO, and private IPS health centers.
Frequently Asked Questions About the Mosquito Surge
Which mosquito species is causing the heavy swarms at the Gran Malecón?
The District Health Secretariat identifies the Culex mosquito as responsible for the vast swarms affecting visitors at the Gran Malecón and residential terraces. While these insects cause bothersome bites and skin irritation, they do not transmit dengue, zika, or chikungunya.
How does the dengue situation in Barranquilla compare to the rest of Atlántico?
Barranquilla has registered approximately 3,150 dengue cases in 2026 with zero reported deaths in the District. In contrast, the surrounding Atlántico department reported 3,124 cases up to epidemiological week 38, placing the department above its expected case threshold for that timeframe.
What specific prevention measures are health authorities implementing?
The Barranquilla District Health Secretariat conducts targeted fumigation in high-impact zones and dispatches “Caminantes de la Salud” to inspect homes and eliminate standing water. Additionally, the District has made the Qdenga dengue vaccine available free of charge for nine-year-old children at local health centers.
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